Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to the technical field of aseismic design in civil engineering, and discloses an SMA bionic honeycomb sandwich structure, the SMA bionic honeycomb sandwich structure comprises an outer honeycomb and an inner honeycomb, the wall thickness of the outer honeycomb can be represented as lambda Lh1, Lh1 is the side length of the outer honeycomb, Lh2 is the side length of the inner honeycomb, and lambda is the ratio of the wall thickness to the side length of the honeycomb; the gap 0.5 u1 between the outer honeycomb and the inner honeycomb can be represented by the following formula: 0.5 u1 = Lh1cos30 degrees-lambda Lh1-Lh2cos30 degrees, Lh1 is the side length of the outer honeycomb, Lh2 is the side length of the inner honeycomb, and lambda is the ratio of the wall thickness to the side length of the honeycomb; and the gap 0.5 u1 between the outer honeycomb and the inner honeycomb can be shown in the following formula: 0.5 u1 = Lh1cos30 degrees-lambdaLh1-Lh2cos30 degrees. According to the multi-stage honeycomb sandwich structure, the multi-stage honeycomb sandwich structure can adapt to earthquake intensities of different levels, the geometric large deformation capacity of the honeycomb structure is utilized, meanwhile, the multi-stage honeycomb sandwich structure has different rigidity levels, the embedded solid hexagonal block protection structure is damaged when the displacement is too large, and the anti-seismic property of the multi-stage honeycomb sandwich structure is improved. And due to the hyperelasticity of the SMA material, the self-resetting performance is relatively high under a strong earthquake.
本发明涉及土木工程中抗震设计技术领域，且公开了一种SMA仿生蜂窝夹心结构，所述SMA仿生蜂窝夹心结构包括有外蜂窝、内蜂窝，所述外蜂窝壁厚可表示为：λLh1，其中Lh1为外蜂窝边长，Lh2为内蜂窝边长，λ为蜂窝的壁厚边长比；所述外蜂窝、内蜂窝间隙0.5u1可由下式表示：0.5u1＝Lh1cos30°‑λLh1‑Lh2cos30°，其中Lh1为外蜂窝边长，Lh2为内蜂窝边长，λ为蜂窝的壁厚边长比；所述外蜂窝、内蜂窝间隙0.5u1可由下式表：0.5u1＝Lh1cos30°‑λLh1‑Lh2cos30°，本发明通过多级蜂窝夹心结构可以适应不同层级的地震强度，利用蜂窝结构的几何大变形能力的同时又具有不同的刚度等级，内嵌实心六角块保护结构在位移过大时发生破坏，实现震后自复位，SMA材料的超弹性特性在强震下具有较强的自复位性能。
The invention relates to the technical field of aseismic design in civil engineering, and discloses an SMA bionic honeycomb sandwich structure, the SMA bionic honeycomb sandwich structure comprises an outer honeycomb and an inner honeycomb, the wall thickness of the outer honeycomb can be represented as lambda Lh1, Lh1 is the side length of the outer honeycomb, Lh2 is the side length of the inner honeycomb, and lambda is the ratio of the wall thickness to the side length of the honeycomb; the gap 0.5 u1 between the outer honeycomb and the inner honeycomb can be represented by the following formula: 0.5 u1 = Lh1cos30 degrees-lambda Lh1-Lh2cos30 degrees, Lh1 is the side length of the outer honeycomb, Lh2 is the side length of the inner honeycomb, and lambda is the ratio of the wall thickness to the side length of the honeycomb; and the gap 0.5 u1 between the outer honeycomb and the inner honeycomb can be shown in the following formula: 0.5 u1 = Lh1cos30 degrees-lambdaLh1-Lh2cos30 degrees. According to the multi-stage honeycomb sandwich structure, the multi-stage honeycomb sandwich structure can adapt to earthquake intensities of different levels, the geometric large deformation capacity of the honeycomb structure is utilized, meanwhile, the multi-stage honeycomb sandwich structure has different rigidity levels, the embedded solid hexagonal block protection structure is damaged when the displacement is too large, and the anti-seismic property of the multi-stage honeycomb sandwich structure is improved. And due to the hyperelasticity of the SMA material, the self-resetting performance is relatively high under a strong earthquake.
本发明涉及土木工程中抗震设计技术领域，且公开了一种SMA仿生蜂窝夹心结构，所述SMA仿生蜂窝夹心结构包括有外蜂窝、内蜂窝，所述外蜂窝壁厚可表示为：λLh1，其中Lh1为外蜂窝边长，Lh2为内蜂窝边长，λ为蜂窝的壁厚边长比；所述外蜂窝、内蜂窝间隙0.5u1可由下式表示：0.5u1＝Lh1cos30°‑λLh1‑Lh2cos30°，其中Lh1为外蜂窝边长，Lh2为内蜂窝边长，λ为蜂窝的壁厚边长比；所述外蜂窝、内蜂窝间隙0.5u1可由下式表：0.5u1＝Lh1cos30°‑λLh1‑Lh2cos30°，本发明通过多级蜂窝夹心结构可以适应不同层级的地震强度，利用蜂窝结构的几何大变形能力的同时又具有不同的刚度等级，内嵌实心六角块保护结构在位移过大时发生破坏，实现震后自复位，SMA材料的超弹性特性在强震下具有较强的自复位性能。
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